How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 6/28100.0*Chance in playoffs100.0*Play-in100.0*Average seed
Shock 4 Spitfire 0 -12.8
-1.0
-0.7
Valiant 4 Spitfire 0 -11.0
-0.6
-0.6
Spark 4 Mayhem 0 -2.4
-0.1
Dynasty 3 Hunters 0 -2.4
+0.1
-0.1
Valiant 2 Spark 3 -1.9
+0.1
-0.1
Fusion 3 Uprising 2 -1.8
-0.1
Dynasty 3 Eternal 1 -1.8
-0.1
Charge 1 Dragons 3 -1.7
+0.1
-0.1
Titans 4 Gladiators 0 +1.6
+0.1
Gladiators 4 Defiant 0 -1.5
+0.1
-0.1
Excelsior 3 Fuel 2 +0.7
+0.1
Hunters 3 Shock 2 -0.2
-0.1
Defiant 1 Outlaws 3 +0.2
If winner is:HomeAway
Week of 7/6100.0*Chance in playoffs100.0*Play-in100.0*Average seed
Justice vs Fusion+2.0-2.0
+0.1-0.1
+0.1-0.1
Dragons vs Charge-2.0+2.0
+0.1-0.1
-0.1+0.1
Charge vs Justice-0.2+0.2
Reign vs Mayhem-0.2+0.2
Defiant vs Excelsior-0.2+0.2

What If

Chances based on how well the Spitfire finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-LplayoffsPlay-in1234567891011121314151617181920Count
197-0100.0%Yes618669007,289,325
186-199.6Yes135237700050,255,807
175-289.2Yes0014413410100150,737,323
164-344.2Yes01103339152000251,252,290
153-45.3100.0%0052643224000251,218,665
142-50.099.8002153732122000150,733,100
131-60.079.90004173028154100050,241,536
120-7Out12.800021022292310207,293,874
Total:34.4%98.2%0061216201913742100000919,021,920
Games Above .500
Chance Will Make Playoffs